4.4.6 Water hammer...............................................................................................................................24
4.4.7 Freezing ........................................................................................................................................24
4.5 Locating problems ...................................................................................................................................24
4.5.1 Conditions leading to insufficient or no discharge......................................................................... 24
4.5.2 Conditions leading to excessive power consumption.................................................................... 24
5 Preventative Maintenance ..............................................................................................................................27
5.1 General comments ..................................................................................................................................27
5.2 Maintenance schedule ............................................................................................................................27
5.3 Liquid end................................................................................................................................................27
5.3.1 To disassemble the liquid end .......................................................................................................27
5.3.2 To assemble the liquid end............................................................................................................28
5.4 Power end ...............................................................................................................................................29
5.4.1 "J " type bearing ............................................................................................................................29
5.5 Impeller clearances .................................................................................................................................29
Methods to determine impeller nose clearance ............................................................................... 30
5.6 Maintenance of Bearings.........................................................................................................................30
5.6.1 Bearing lubrication and care .........................................................................................................30
5.6.2 Oil lubrication ................................................................................................................................31
5.6.3 Grease lubrication .........................................................................................................................31
5.6.4 To disassemble the "J" bearing ..................................................................................................... 34
5.6.5 To assemble the "J" bearing..........................................................................................................34
6 Spare Parts ......................................................................................................................................................36
6.1 Ordering spare parts ...............................................................................................................................36
6.1.1 Recommended spares ..................................................................................................................36
6.2 Parts list...................................................................................................................................................36
6.3 JC sectional view.....................................................................................................................................38
Appendix ............................................................................................................................................................0
Appendix .....................................................................................................................................................0
Special instructions ...............................................................................................................................0
How to order..........................................................................................................................................0
Emergency service................................................................................................................................0
Table of Contents
2
Model JC Installation, Operation and Maintenance Instructions
